<!DOCTYPE html>
<html lang="zh-cmn-Hans">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
    <title>百度地图API</title>
    <script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=GWKMwlzTUGmMqnKCp5rxq6nRsDmefBCW"></script>

    <!-- 如果需要拖拽鼠标进行操作，可引入以下js文件 -->
    <script type="text/javascript" src="http://api.map.baidu.com/library/RectangleZoom/1.2/src/RectangleZoom_min.js"></script> 
     <style type="text/css">
        body, html {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
    </style> 
</head>
<body>  
   <div id="allmap" style=" width:800px;height: 500px;"></div>
   <div id="r-result">请输入:<input type="text" id="suggestId"  value="" style="width:150px;" /></div>
   <div id="searchResultPanel" style="border:1px solid #C0C0C0;width:150px;height:auto; display:none;"></div>
</body>  
</html>  
<script type="text/javascript">

	// 百度地图API功能
	function G(id) {
		return document.getElementById(id);
	}

	var map = new BMap.Map("allmap");
	map.enableScrollWheelZoom();   //启用滚轮放大缩小，默认禁用
	map.enableContinuousZoom();    //启用地图惯性拖拽，默认禁用
	// var myDrag = new BMapLib.RectangleZoom(map, {
	//     // followText: "拖拽鼠标进行操作"
	// });
	// myDrag.open();  //开启拉框放大
	// myDrag.close();  //关闭拉框放大

	map.centerAndZoom("北京市海淀区",9);   // 初始化地图,设置城市和地图级别。

	var ac = new BMap.Autocomplete(    //建立一个自动完成的对象
		{"input" : "suggestId"
			,"location" : map
		});

	ac.addEventListener("onhighlight", function(e) {  //鼠标放在下拉列表上的事件
		var str = "";
		var _value = e.fromitem.value;
		var value = "";
		if (e.fromitem.index > -1) {
			value = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
		}
		str = "FromItem<br />index = " + e.fromitem.index + "<br />value = " + value;

		value = "";
		if (e.toitem.index > -1) {
			_value = e.toitem.value;
			value = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
		}
		str += "<br />ToItem<br />index = " + e.toitem.index + "<br />value = " + value;
		G("searchResultPanel").innerHTML = str;
	});

	var myValue;
	ac.addEventListener("onconfirm", function(e) {    //鼠标点击下拉列表后的事件
		var _value = e.item.value;
		myValue = _value.province +  _value.city +  _value.district +  _value.street +  _value.business;
		G("searchResultPanel").innerHTML ="onconfirm<br />index = " + e.item.index + "<br />myValue = " + myValue;
		setPlace();
	});

	function setPlace(){
		map.clearOverlays();    //清除地图上所有覆盖物
		function myFun(){
			var pp = local.getResults().getPoi(0).point;    //获取第一个智能搜索的结果
			console.log('经度：'+pp.lng, '纬度：'+pp.lat);
			map.centerAndZoom(pp, 18);
			map.addOverlay(new BMap.Marker(pp));    //添加标注
		}
		var local = new BMap.LocalSearch(map, { //智能搜索
			onSearchComplete: myFun
		});
		local.search(myValue);
	}

</script>